JPH0715705Y2 - Connection device for piping joint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a connecting device for a pipe joint, particularly a steel pipe joint for piping.

(Prior Art) Conventionally, a method of connecting pipes by a joint as shown in FIGS. 9 and 10 has been proposed.

In this joint, in order to connect the pipes a and b, the retainer c and the packing member d are attached to one pipe a as shown in FIG.
And the fitting body e is fitted on the outside. The packing member f and the socket g are externally fitted to the other pipe b.

Both pipes a and b are inserted into a seal member h provided in a retainer c until they abut each other, and a socket g is externally fitted to a socket insertion portion i of a joint body e. Next, as shown in FIG. 10, when the socket g is inserted until it abuts on the positioning member j of the main body e, the spring l accommodated in the positioning groove k springs outward and the stepped small diameter portion on the inner surface of the socket g. The joint main body e and the socket g are integrally engaged with each other so that the socket g is prevented from coming off. As a result, the two packing members d and f have the small diameter portions n and o of the joint member e and the socket g, respectively.
And both ends of the retainer c
The outer diameters of a and b are restrained, and the gap around them is sealed.

In this way, the pipes a and b are easily connected by the joint, but the connection operation is inconvenient because manual work is required to bring the joint body e and the socket g close to each other.

(Problems to be Solved by the Present Invention) The present invention solves the above-mentioned conventional inconvenience, and provides a connection device for efficiently connecting a set of joint members to each other without any manual operation or the like. The purpose is to

(Means for Solving the Problems) In order to achieve such an object, the present invention allows a set of joint members externally fitted to each abutting portion of a pair of abutted pipes to be fitted and inserted close to each other. In the connecting device, a frame body having a pair of bifurcated frames that are mounted so as to straddle the pipe is provided on both outer sides in the axial direction of the joint members, and the frame body is provided in one frame of the frame body. A locking portion is provided for locking the mouth end of one of the joint members when mounted over the pipe, and the other frame of the frame body faces the joint member locked by the locking portion. Is provided with a pressing member for pushing the other joint member, and a cylinder for operating the pressing member slidably in the locking portion direction is provided.

(Operation) According to the present invention, in order to connect a pair of joint members fitted to each abutting portion of a pair of abutted pipes to each other, the frame body is provided on both outer sides in the axial direction of the joint members. The pair of bifurcated frames are mounted so as to straddle each pipe, and the mouth end of one of the joint members of both joint members is locked to the locking portion provided on the one frame to form the frame body. Positioning and further actuating the cylinder to push the other joint member toward the joint member locked by the locking portion via the pressing member so that both joint members are fitted and connected to each other. .

(Embodiment) The following will describe one embodiment of the present invention with reference to FIGS. 1 to 4.

The connection device 1 includes a pair of pressing devices on the frame body 2 as shown in FIG.
Consists of 3 and 4.

The frame body 2 is opposed to each other with a space therebetween, and a pair of roughly U-shaped frames 5 and 6 and space holding members 7, 8, 9, and 10 for connecting the both frames 5 and 6 to hold the space therebetween. , 11 and.

Both sides of one frame 5 of the two frames 5 and 6 are locking portions 12 and 13 which are locked to both ends of the joint body e when the frame 5 is mounted on the pipe a.

Further, the both locking portions 12 and 13 are provided with reinforcing plate pieces 14 and 15 at their inner edges to reinforce the locking portions.

In the frame body 2, the frame bodies 5 and 6 are opposed to each other, and both holding pieces 16 and 17 formed in the U-shaped intermediate portions thereof are embedded and connected to both ends of the member 7 made of a hollow material. The engaging portions 12 and 13 on both sides are connected by the members 8 and 9 and the members 10 and 11 which are arranged in parallel on each side, respectively, and the respective end portions are screwed together.

On the other hand, the pressing devices 3 and 4 are formed by providing pressing members 22 and 23 on piston rods 20 and 21 of a pair of cylinders 18 and 19, respectively.

Both pressing members 22, 23 have guide bushes 24, 25, 2 at their respective ends.
The members 8 and 9 and the members 10 and 11 for each side through 6,27.
It was fitted to each and slidably provided.

The pressing members 22 and 23 lock the mouth ends of the socket g with their inner edges. Reinforcing plate pieces 28 and 29 are provided on the side edges to reinforce the side edges.

The both cylinders 18 and 19 are attached to both sides of the frame 6, and are provided on the piston rods 20 and 21, respectively, and the pressing members 22 and 23 are provided.
Was connected. In order to connect a joint using the connecting device 1 configured as described above, the device 1 is connected to the pipe a, as shown in FIG.
B is butted, and the joint body e and the socket g, which are fitted to the butted portion as shown in FIG. 3, are arranged between the frame 5 of the device 1 and the pressing members 22 and 23, and the outer peripheries of the pipes a and b are placed. I attached it to.

Then, the mouth end of the joint body e is locked to the locking portions 12 and 13 of the frame 5, and the mouth end of the other socket g is connected to the pair of cylinders 18 and 19.
It presses through the pressing members 22 and 23.

As a result, the joint body e and the socket g are
The socket g abuts against the positioning member h and the spring l housed in the positioning groove k as shown in FIG.
Repulsively outwardly engages with the small-diameter groove m of the socket g to be integrated.

In the present embodiment, the connecting device 1 includes the members 8 and 9 and the members 10 and 11 which are parallel to each other on one side and the pressing members 22 and 23 to the bush 2 respectively.
Since 4 to 27 are fitted and slidably configured, when both cylinders 18 and 19 are operated, the pressing members 22 and 23 are pushed through the bushes 24 to 27 to the respective members 8 and 9 and the above members. Member 10,
You will be smoothly guided to 11. Therefore, the pressing members 22 and 23 are
The mouth end of the socket g can be smoothly and parallelly pressed without tilting, and the socket g can also be smoothly pushed and approached to the joint body e.

In this configuration, the frame body 2 includes the frames 5 and 6 and the spacing member.
Although the frame body is formed by assembling 7,8,9,10,11, the frames 5,6 and the members 7 to 11 may be integrally formed.

Further, the device 1 is configured such that both side edges of the locking portions 12 and 13 of the frame 5 and the pressing members 22 and 23 are close to each other so as to come into contact with the outer circumferences of the pipes a and b. Connection device 1
Is attached to both pipes a and b, the respective locking portions 12 and 13 and the pressing members 22 and 23 are positioned toward the joint body e or the mouth end of the socket g.

Further, the pressing devices 3 and 4 of the device 1 are provided with a pair of cylinders 18 and 19 on both sides of the frame body 2, but the cylinders may be hydraulic cylinders or air cylinders.
When pressing using 3, 4, it is easy to press both cylinders 18, 19 in synchronization with each other.

Next, two other embodiments of the present invention shown in FIGS. 5 to 8 will be described. Both embodiments are adapted to cope with the case where the diameter of the pipe to be connected is changed.

The connecting device 30 shown in FIG. 5 includes a frame body 31 and pressing devices 32 and 33. The frame body 31 is provided on an inverted Y-shaped member 35 having a handle portion 34 at a central mating portion, a pair of position adjusting members 36, 37 attached to and connected to these members, and one position adjusting member 36. Spacing members 38, 39, spacing members 40, 41 provided on the other position adjusting member 37, connecting members 42, 43 provided at both ends of the one spacing member 38, 39, and the other spacing member It is composed of connecting members 44 and 45 provided at both ends of 40 and 41.

More specifically, the inverted Y-shaped member 35 is provided with a grip portion 34 above the central mating portion, and members 46 and 47 that are inclined downward on both sides are not connected in a substantially inverted Y-shaped manner. Provided. The position adjusting members 36, 37 are slidably inserted into the members 46, 47 through the holes 48, 49 formed in the upper portions thereof and hang down,
The upper part of the member was fixedly provided on the members 46 and 47 with the setscrews 50 and 51. A pair of parallel members 38 and 39 and members 40 and 41, which are orthogonal to the members 46 and 47, are inserted into the position adjusting members 36 and 37, respectively. The connecting member 4 is provided at each end of the members 38 and 39.
Screwed 2,43. The connecting members 44 and 45 were screwed into the respective ends of the other members 40 and 41.

The connecting members 42 and 44 also function as locking portions that lock the mouth end of one of the joint members when the connecting members are mounted across the pipe to be connected. Further, reinforcing plate pieces 52, 53 for reinforcing the engaging portions 42, 44 are provided on the inner edges of the engaging portions 42, 44, respectively.
The pressing devices 32, 33 are formed by connecting pressing members 58, 59 to piston rods 56, 57 of a pair of cylinders 54, 55 mounted on the connecting members 43, 45, respectively. Both pressing members 58, 59 are
Similar to the above embodiment, the members 38, 39, 40 and 41 are slidably provided via the bushes 60, 61, 62 and 63, respectively. The pressing members 58 and 59 are provided with reinforcing plates 64 and 65 at their inner edges to reinforce them.

When the diameter of the pipe to be connected is changed, the connecting device 30 configured in this way has both locking portions 42, 44 and both pressing members 58, 59 as shown from the phantom line in FIG. 6 to the solid line. Until the inner edges of the position adjusting members 36 and 3 contact the outer circumference of the pipe.
7 is moved along the members 46 and 47 of the inverted Y-shaped member 35,
Both the position adjusting members 36 and 37 are fixed to the members 46 and 47 of the inverted Y-shaped member 35 with set screws 50 and 51, respectively, and attached to the pipe.

Then, similarly to the above-described embodiment, the pressing devices 32 and 33 are operated to bring both joint members close to each other and connect them. In FIG. 7 showing another embodiment, a connecting device 70 includes a frame 71 and a pressing device.
It consists of 72,73. In the device 70, the structure of the frame 71 is similar to that of the device 30 of FIG. 5 except that the inverted Y-shaped member 35 and the position adjusting members 36 and 37 mounted on both sides are replaced by a pair of semi-circular members 74 and 75. U
It was shaped like a letter at the center and hinged with support pins 76 so that it could be opened and closed. A pair of links 77, 78 extending vertically on both end surfaces of both members 74, 75 in the vicinity of the hinged portions were vertically installed, and both links 77, 78 were connected by a connecting pin 79 extending directly below the support pin 76. The device 70
5 has the same configuration as that of FIG. 5 except the above configuration.

When the diameter of the pipe to be connected is changed, the connecting device 70 configured as described above closes the members 74 and 75 from the phantom line to the solid line of FIG. 81 and both pressing members
The inner edges of 82 and 83 are brought into contact with the upper pair of links 77 and 78 in three directions to be attached to the outer circumference of the pipe. Then, similarly to the above-described embodiment, the pressing devices 72 and 73 are operated to bring the two joint members close to each other and connect them.

(Effect) And, as is apparent from the above description, the present invention is arranged such that both of the two frames of the frame body are mounted so as to straddle the pipes on both outer sides in the axial direction of both joint members, and one frame of the frame body is mounted. The frame can be easily positioned simply by locking the locking part of the one end to the mouth end of one of the joint members, and then the cylinder is operated to slide the pressing member toward the locking part. It is possible to provide a connecting device for a piping joint that can easily and reliably connect both joint members by simply pushing in the other joint member.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a perspective view thereof, FIG. 2 is a front view of a part of FIG. 1 removed, and FIG. FIG. 4 is a plan view of FIG. 3, FIG. 5 is a perspective view of another embodiment, FIG. 6 is a left side view of FIG. 5, and FIG. FIG. 7 is a perspective view of another embodiment, FIG. 8 is a left side view of FIG. 7, and FIGS. 9 to 10 show joint members connected by the device of the present invention. Is a cross-sectional view of the main part of the joint member before connection, and FIG. 10 is a cross-sectional view of the main part in the connected state. 1,30,70… Connecting device 2,31,71… Frame 3,4,32,33,72,73… Pressing device 12,13,42,44,80,81… Locking part

Claims (1)

[Scope of utility model registration request] 1. A device for connecting a pair of joint members, which are externally fitted to respective butting portions of a pair of butted pipes, close to each other and connected so that the pipes are provided on both outer sides in the axial direction of the two joint members. A frame body having a pair of bifurcated frames to be mounted straddlingly is provided, and one frame of the frame body has a mouth end of one joint member when the frame body is straddled over a pipe and mounted. And a pressing member that pushes the other joint member toward the joint member locked by the locking portion is provided on the other frame of the frame body, A connecting device for piping joints, which is provided with a cylinder that is slidably operated in the direction of the locking portion.